package com.bw.controller;

import com.alibaba.fastjson.JSON;
import com.bw.entity.User;
import com.bw.mapper.UserMapper;
import org.apache.taglibs.standard.tag.common.core.RedirectSupport;
import org.spring.kun.common.Md5Utils;
import org.spring.kun.common.TokenUtils;
import org.spring.kun.common.ZzyUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.RequestMapping;

import javax.servlet.http.HttpServletResponse;
import javax.validation.Valid;
import java.util.concurrent.TimeUnit;

@Controller
public class LoginController {

    @Autowired
    UserMapper userMapper;

    @Autowired
    RedisTemplate redisTemplate;

    @RequestMapping("/loginPage.do")
    public String loginPage() {

        return "login";
    }


    @RequestMapping("/login.do")
    public String login(@Valid User loginUser, BindingResult result, Model model, HttpServletResponse response) {
        //1. 非空验证
        if (result.hasErrors()) {
            model.addAttribute("error", result.getAllErrors().get(0).getDefaultMessage());
            return "login";
        }

        //2. 用户名不存在
        User userDB = userMapper.selectByName(loginUser.getName());
        if (userDB == null) {
            model.addAttribute("error", "用户名不存在");
            return "login";
        }
        //3. 密码错误
        String loginUserPassword = loginUser.getPassword(); //用户输入的密码
        String password = userDB.getPassword();// 数据库的密码
        String salt = userDB.getSalt();// 数据库的盐

        String md5String = Md5Utils.getMD5String(loginUserPassword + salt);

        if (!md5String.equals(password)){
            model.addAttribute("error", "密码错误");
            return "login";
        }

        // 加密用户 得到token  把token放入cookie 把cookie返回给浏览器  30 是过期时间
        TokenUtils.responseTokenByCookie(userDB,response,30);

        // 登录成功， 把用户信息存到Redis  并且设置过期时间为cookie/ token 的过期时间
        redisTemplate.opsForValue().set(userDB.getName(), JSON.toJSONString(userDB),30, TimeUnit.MINUTES);
        // 发短信
//        boolean hello = ZzyUtils.sendSms("13181568375", "hello", 5);

        return "redirect:list.do";
    }


    @RequestMapping("/test.do")
    public String test() {

        return "test";
    }
}
